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Computer Networks
Public Key Cryptography
Q
Which of the following is correct about RSA scheme in public key cryptography?
AA. It is efficient for decryption
BB. Lengthy keys are required for more security
CC. It is not efficient for encryption
DD. It is not popular
Correct Answer:
B. B. Lengthy keys are required for more security
Explanation:
RSA schemes need at least 1024 bits in a key for providing good level of security. Symmetric key cryptography uses 128 bits. The more the key length, more the security in RSA, this is why RSA slows down the system.
